3. Hardware Installation

Program and Source Link Connections

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The purpose of the edge-blending process is to provide a smooth transition for the eye over the blending region. To provide a smooth transition, identical image data from two different projectors must be superimposed and the output from each projector must be edge feathered to provide seamless optical mixing of the two source images. There are two video processing functions that are required specifically to support wide-screen edge blended displays: Image Overlap and Edge Feathering.

Image Overlap

Source images consist of a single HD image that has been split into multiple channels, or a series of images from a multi-head graphics card. In either case, the source images must be re-formatted to provide image overlap to support the edge-blending process. The Image Overlap processing is illustrated below. The width of the blending region determines the amount of required image overlap and this must be programmable to support different applications.

Original Image from Multi-head Graphics Card

1024

Image for

Projector 1

1280

1280

 

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Unused

Source

Material

 

 

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Image for

Image

Projector 2

 

Overlap

 

Region

 

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12

Figure 3-11.Image Overlap and Data Doubling

100

 

Encore Presentation System • User’s Guide • Rev 04

 

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Barco 26-0313000-00 manual SáÇÉç=mêçÅÉëëáåÖ, Image Overlap